Q19
The surface hardness of the following order is achieved by nitriding operation
A.
600 VPN
B.
1500 VPN
C.
1000 to 1100 VPN
AnswerD.
250 VPN
Answer: Option C
Solution
Answer: Option C
Solution:
Nitriding is a heat treating process that diffuses nitrogen into the surface of a metal to create a case-hardened surface. and The surface hardness is achieved by nitriding operation at 1000 to 1100 VPN